The U.K.'s prohibition against buying Huawei's 5G equipment comes as the Chinese tech giant reports strong revenue growth on the back of growing domestic demand.

A number of telecom equipment suppliers sport low valuations following years of seeing very little growth. 5G network rollouts should provide them with a bit of a lift.

Down goes Frazier, and down went Applied Optoelectronics.

HPE was stung by soft cloud server demand, and might cut its losses. Palo Alto is rebounding after a rough start to 2017, and Box and Ciena continue executing well.

Jim Cramer is bearish on propane, optical and sand stocks.

In the energy sector, 25% of the companies covered by Morningstar garnered fair-value increases of more than 10%.

After mass shootings, a lot of investors are saying enough if enough.

Nvidia stock is being bought on the dip. Here's how traders should approach it now.

"Combining our assets and talented team with Broadcom's existing enterprise software portfolio creates a remarkable enterprise software player," said VMware CEO Raghu Raghuram.